Wimbledon, England – Coco Gauff’s unexpected but remarkable run at Wimbledon is over.

The 15-year-old American, who became the youngest player to qualify for Wimbledon’s main draw in the professional era, lost to former No. 1 Simona Halep 6-3, 6-3 in the fourth round on Monday.

“I learned a lot,” said Gauff, who is younger than many of the players in the junior competition at Wimbledon. “I learned how to play in front of a big crowd. I learned what it was like to be under pressure. I learned a lot and I’m really thankful for this experience.”

Gauff knocked out five-time champion Venus Williams in the first round, and then saved two match points in the third round to reach the second week of a Grand Slam tournament in her debut.

Playing on No. 1 Court, the second biggest stadium at the All England Club, Gauff had plenty of support from the crowd. But Halep, the 2018 French Open champion and a Wimbledon semifinalist in 2014, had the better shots. She broke Gauff five times and took advantage of 29 unforced errors.

Gauff did manage to save two more match points when serving at 5-2, but Halep won the next game to reach the quarterfinals.